With the FIA rules, they also have a green flag after every yellow. This is confusing at times at different tracks. For example, most know Road Atlanta. If you see a yellow at Turn 7 (leading onto the back stretch) and the station at Turn 8 (the pedestrian bridge) isn't manned (and it often isn't), you won't see a green there. Does this mean that you can't pass until Turn 9? [/b]
I believe that is correct.
SCCA - yellow flag area is from the flag until "the incident" or the next staffed station.
FIA - yellow flag area is from the flag until you see a green flag.
SCCA's definition allows more of the track to be green, but leaves open to interpretation "the incident."
As both a flagger and a driver, I would be hesitant to impose the FIA-standard for blue flags on the club. How many times have you thrown a blue at the wrong car? I know I have. The biggest problem I've seen with drivers shown the blue is a general lack of awareness both before and after the flag has been displayed. Making it a mandatory move over flag doesn't fix that problem and we already have rules for blocking and contact.
As for the yellow/green combo - I'm in favor of it. Consider turn 1 at Summit Point - a car pulls off just after the flag station on lap 2. A standing yellow is displayed. On lap 3, a car pulls off after the apex (i.e. blind to incoming drivers) and there are workers at the first car. As a driver, I see the flag, the first car and a reason to display the flag. I do not see the new incident. I'm going to think I am free to take a car under braking as long as I do it after the first car, but SURPRISE! I just passed under the yellow and giving back the position doesn't void my infraction. Depending on the operating steward, the driver I just passed and the SOMs, I could be DQ even if I yield the position and as far as I can tell, all I've got is an appeal without merit.
If, however, I know that under no circumstances may I pass prior to seeing a green, there is less chance of an inadvertent violation on my part and reduces the risk on people responding to that second car.